Left: Cleanout/ LeafCatcher to prevent Debris from entering underground french drains and other drains. It also acts as a funnel to reduce down to a 3inch drainpipe. Below: 6k (standard is 5k, they are 5inchs across the top) Black Gutters with large 3x4 Beaver Brown downspout (standard is 2x3 inches) bigger pipes help wash debris down.